baber/WOPTO huggingface dataset:
Patent GB-534009-A (GB)
Title: Improvements in the art of setting diamonds for industrial purposes
IPC: B23P5/00
Filed: 1940-02-17
Abstract: 534,009. Diamond tools. TRIGGS, W. W. (Koebel Diamond Tool Co.). Feb. 17, 1940, No. 3067. [Class 124] [Also in Group II] A method of setting diamonds for abrasive tools consists in producing a relatively soft and porous metallic carrying member 29 by sintering comminuted metallic material, preliminarily positioning one or more diamonds 33, 34 on said carrying member in a layer 37 of comminuted metallic material, applying to said layer a body 40 of metallic material having a lower melting point than that of said layer, and subjecting the assemblage to a temperature below that used in originally sintering the carrying member but sufficiently high to sinter said layer and cause the metal of lower melting point to insinuate itself into the carrying member to thereby set the diamonds and harden the carrying member. The carrying member 29 may consist of 89 per cent. Swedish iron, 6 per cent. cobalt, and 5 per cent. copper, and it is preferably subjected to a pressure of 20-30 tons before sintering at about 1200‹C. It may be drilled to form apertures 31, 32 to receive the diamonds which may be held temporarily in position either by tapping or by pressing over the edge 36 of the aperture. The layer 37 of comminuted material may be of the same character as the carrying member 29, and it may be used in powder form which is slightly compressed, or made into a paste with paraffin. The second sintering may take place at 1174‹C. The body 40 of metallic material of lower melting point may comprise electrolytic copper, or silver solder, and it may comprise 40 per cent. by weight of the material used to produce the carrying member 29. The diamonds may then be exposed by sand-blasting. In one modification, the carrying member 29 is sintered at 950‹C., the layer 37 is sintered at 1175‹C. under a pressure of 30 tons, and, after cooling, the copper or like body 40 is applied and the assemblage heated to 1174‹C. In another modification, diamond particles are applied in the form of a paste by mixing them with comminuted metallic material and paraffin.
Patent GB-326936-A (GB)
Title: Improvements in and relating to processes for producing paper-, artificial leather-material and the like from leather waste
IPC: D21H17/02
Filed: 1929-01-30
Abstract: 326,936. Serebriany, M. M. Jan. 30, 1929. No Patent granted (Sealing fee not paid). Pulp, preparation of; artificial leather.- In making pulp for paper or pasteboard from leather waste, the waste is swelled in hot water with the addition of about 5 per cent salt or turpentine, pressed into log form and ground with or without the addition of mineral or vegetable fibrous material.
Patent GB-390914-A (GB)
Title: Improvements in and relating to vapour electric discharge rectifiers
IPC: B65G33/00
Filed: 1932-02-02
Abstract: 390,914. Rectifying alternating currents. AKT.-GES. BROWN, BOVERI, ET CLE, Baden, Switzerland. Feb. 2, 1932, No. 3143. Convention date, Feb. 2, 1931. [Class 38 (ii).] In and for back ignition and short circuit protection arrangements for mercury-vapour rectifiers provided with means for facilitating ignition of the anodes, a change-over device is provided on the primary side of the normal grid control transformer. In one arrangement the grid control transformer has two primaries displaced 180‹ with respect to one another and a back ignition or short circuit responsive relay changes over the connection of the A.C. supply from one primary to the other. A six-phase rectifier is illustrated as supplied from three phase mains and the star point of the secondary of the grid control transformer is connected through a variable D.C. supply to the cathode so that control of the D.C. output is obtained. The primary of the grid control transformer may be either star or delta connected. In a modification, Fig. 2, in the event of back ignition or short circuit the primary 4 of the grid control transformer is disconnected by relay 10 and short-circuited so that the steady negative bias of the series D.C. supply 16 in the connection to the cathode 3 is rendered effective on all the grids. The Specification as open to inspection under Sect. 91 disclosed arrangements in which the protective relay charged over connections in the star point connection of the secondary of the grid transformer to the cathode whereby a swamping D.C. negative bias was inserted .under emergency conditions. The D.C. supply may be obtained from a battery.or a resistance connected as a potential divider in the cathode to anode circuit. This subject-matter does not appear in the Specification as accepted.
Patent GB-1489818-A (GB)
Title: Fuel cell batteries
IPC: H01M8/00
Filed: 1975-01-24
Abstract: 1489818 Fuel cells SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES ALSTHOM ET CIE 24 Jan 1975 [25 Jan 1974] 3227/75 Heading H1B A fuel cell comprises cathode 2 (carbon, PTFE, and carbon fibres), anode 3, electrolyte 6 and current collectors 9, 10 which may have asymmetrical corrugations and engage alternate cathodes and anodes, and a corrugated separator 12. The anode may have two layers one (Fig. 3, not shown) of catalysed carbon and PTFE and the other an alkaline ion exchange resin or an insoluble hydroxide, e.g. CaOH. Alternatively, the constituents may be combined in a single layer. The electrolyte may be KOH with potassium chloride or sulphate and a buffer, e.g. boric acid, mono- or di-acid phosphates or acetic acid. The fuel may be methanol, hydrocarbons or natural gas or hydrazine. In operation (Fig. 21) methanol is fed by a pump 52 through an injector and is vaporized either by a resistance heater or the heat of the cell. Oxidation at the anode produces CO<SP>2</SP> 3  ions which carbonate the KOH electrolyte. On the cathode side, air is fed by a fan 49 and forms OH ions with the electrolyte. Water vapour is condensed at 7 in the upper part of the anode and flows back into the electrolyte. When the material in the anode has been converted to CO<SP>2</SP> 3 , the compartment 5 is emptied by feeding the electrolyte by a pump 53 to a tank 27 or to another cell. The end of the active phase of the cell may be detected by voltameter, and the end of the decarbonation phase by a CO 2  gas pressure gauge.
Patent GB-491591-A (GB)
Title: Improvements in or relating to the manufacture of cigarettes
IPC: A24C5/47
Filed: 1937-02-03
Abstract: 491,591. Cigarette-making machines. FILTER TIPS, Ltd., and EDWARDS, W. F. M. Feb. 3, 1937, No. 3254. Addition to 457,033. [Class 130] In the manufacture of filter-tip cigarettes as described in the parent Specification, slight axial pressure is applied to the lengths of cigarette rod and filter tips or mouthpieces, comprising each assemblage, throughout the rolling operation. In the construction shown in Fig. 2, uniting bands 4 are carried over a suction table by a perforated conveyer 1 on which the assemblage, comprising a doublelength tip 7 and two cigarette portions 8, 8a, is deposited by a drum. During the rolling operation converging belts 2, 2a press the outer parts 8, 8a of the assemblage towards one another. The belts 2, 2a are driven through universal joints so that their angle of convergence may be adjusted. In the construction shown in Fig. 8, the assemblage is deposited on a single flexible belt 9 of greater width than the assemblage. During the rolling operation portions of the belt pass over longitudinally extending grooves 10, 10a of gradually increasing depth and /or width in a suction table 11, and the belt 9 is contracted laterally to press the outer parts 8, 8a of the assemblage towards the stub 7. The uniting bands may be applied to the assemblages before they contact with the conveyer.
Patent GB-524523-A (GB)
Title: Automatically operated swing doors
IPC: E05F15/12
Filed: 1939-01-31
Abstract: 524,523. Door-operating appliances. SAGE & CO., Ltd., F., HAWES, E. D., and STRATHDEE, G. G. Jan. 31, 1939, No. 3297. [Class 65 (i)] A swing door is opened automatically after an initial opening movement has been effected by hand. The initial movement closes a switch and energizes one or other of solenoids 18 according to the direction of movement. The solenoid moves one or other of clutches 12 to connect pinion 4 to a constantly rotating shaft 1 and thereby to drive gear 5 on the door spindle 6. When the opening is completed the solenoid circuit is broken, and the door is closed by spring 62 controlled by a fluid chuck 74, 75. A spring-pressed detent roller 45 engages a notch in the edge of a collar 43 on the shaft 6 to keep the door closed against wind pressure. The door may be kept open by a latch engaging a socket in the underside of the gear 5, and operated by a wedge on a sliding rod. It may be locked in the closed position by a bolt engaging a socket in the top edge of the door. Several doors may be operated by the same apparatus.
Patent GB-313019-A (GB)
Title: Improved process of saponifying fats and oils
IPC: C11C1/02
Filed: 1928-02-02
Abstract: 313,019. Bergell, C. Feb. 2, 1928. Soaps, processes for making.-Oils and fats are completely saponified by first boiling with lye in such proportions that the mixture contains 56 per cent of fatty acid and 1-2 per cent of salts and excess lye, and then adding water to reduce the fatty acid content to 50 per cent, boiling for a short time, and standing until action is complete. In an example, 300 lb. of bone fat, 300 lb. of tallow, 400 lb. of palm kernel oil, 20 lb. of common salt, and 500 lb. of soda lye of about 36‹ Be. are boiled for 1-2 hours. The mass is then diluted with and stiffened by 30 lb. of water, boiled, and allowed to stand for about 1 hour.
Patent GB-139161-A (GB)
Title: Method of producing tungsten incandescent lamps
IPC: H01K1/04
Filed: 1920-02-04
Abstract: 139,161. Deutsche Gasgl³hlicht Akt.- Ges. (Auerges.). Feb. 17, 1919, [Convention date]. Residual gases; filaments; supports for. - Borates are applied to tungsten filaments or their supports or both to prevent blackening of the bulb. Preferably, potassium borate solution, containing amorphous phosphorus in suspension, is sprinkled on the filament and frame. The filament is not heated until after sealing; the borate and phosphorus are then vaporized.
Patent GB-329006-A (GB)
Title: An improved box or case for stationery
IPC: B42F7/14
Filed: 1929-02-01
Abstract: 329,006. Hulbert, P. H. Feb. 1, 1929. No Patent granted (Sealing fee not paid). Writing cases; blotting-appliances.-A cardboard or like case or box for stationery has its cover a, Figs. 4 and 8, hinged to the bottom of the receptacle so that when opened it will lie flat to serve as a writing pad, blotting-paper d being fitted to the lid, if desired, to serve as a blotting-pad. A single compartment may be provided as in Fig. 4, or two compartments as in Fig. 8.
Patent GB-1181205-A (GB)
Title: Liquid Dispensing Apparatus
Inventor: GODWIN KENNETH
IPC: G01F11/04
Filed: 1968-01-23
Abstract: 1,181,205. Delivering measured quantities of liquid. K. GODWIN. 23 Jan., 1968, No. 3490/68. Heading B8N. An apparatus for dispensing a measured quantity of liquid, such as beer, comprises a piston 25 reciprocably mounted on a tube 9 in a cylinder 1, ports 13, 27, 23 being provided for feeding liquid to one or other side of the piston. A change-over valve 28 is provided which in one position allows pressurized liquid to flow via the ports 13, 23 so as to move the piston 25 to the left as shown and thereby force liquid on the other side of the piston through the port 27 to an outlet; when the position of the valve is changed over the piston moves in the opposite direction. Means are provided in the valve for preventing actuation thereof until the full measure has been delivered. Reference has been directed by the Comptroller to Specification 1,083,723.
Patent GB-678951-A (GB)
Title: Improvements in or relating to 1-phenyl-1-cyclopentyl-3-piperidinopropanol and its salts, and methods of preparing the same
IPC: C07D295/084
Filed: 1950-02-10
Abstract: The invention comprises 1-phenyl-1-cyclopentyl-3-piperidinopropanol of the formula <FORM:0678951/IV (b)/1> and its acid addition and quaternary ammonium salts, and a process for preparing the above compound by reacting beta-N-piperidinopropiophenone with a Grignard reagent prepared from cyclopentyl bromide and treating the reaction product with water.  The process is preferably carried out in an ether medium. The acid addition and quaternary ammonium salts are formed by the normal methods, e.g. with methyl iodide, methyl sulphate, ethyl iodide, methyl chloride or benzyl bromide, or with hydrochloric, sulphuric, nitric, hydrobromic, hydriodic, phosphoric, maleic, citric or cinnamic acid.  A number of examples are given. Specifications 307,304, [Class 2 (iii)], 615,136 and 646,198 are referred to.
Patent GB-581390-A (GB)
Title: Improvements in or relating to the manufacture of synthetic linear polyamide filaments and yarns
IPC: D01D1/06
Filed: 1945-02-13
Abstract: <PICT:0581390/IV/1> The melt spinning of synthetic linear polyamide filaments and yarns may be operated for long periods of time without the formation of "drips" at the spinning face, if a stream of inert gas, e.g. nitrogen, is passed through the molten mass of the material.  The filaments and yarns so obtained have improved and more uniform physical characteristics.  The temperature of the inert gas is preferably not below 100 DEG  C., and in addition to being passed through the molten material the gas may also be passed over the solid material prior to melting.  Solid polyamide particles are fed to charging hopper 1 and are allowed to pass valve 3, as required, into feeding hopper 2 and melt chamber 10. The feeding hopper 2 is surrounded by heating jacket 4 and a heating medium is passed through coil 11 which serves to melt the polyamide.  The inert gas is passed through the inlet 9 and leaves the feeding hopper by outlets 7 or 8. The charging hopper is also provided with inlet and outlet means 15 and 16 for the passage of inert gas therethrough.  Examples are given in which polyhexamethylene adipamide chips are fed to the apparatus. The heating jacket is maintained at 200 DEG  C., and oxygen-free nitrogen is passed through the molten material.  Suitable synthetic fibre-forming polyamides are prepared by processes described in Specifications 461,236 and 461,237.  Specifications 533,307, 549,208 and 555,130 also are referred to.
Patent GB-668673-A (GB)
Title: Improvements in or relating to devices for varying the field seen in a view-finder for a photographic camera
IPC: G03B13/02
Filed: 1950-02-13
Abstract: 668,673. Viewfinders for photographic cameras. PAILLARD SOC. ANON. Feb. 13, 1950 [Feb. 18, 1949], No. 3594/50. Class 98 (i). A control device for varying the field of view of a finder comprising a lens 6 in a mounting 7 movable along a guide 8, is characterized by a rotary control member driving a drum 10 around which passes a flexible connecting member 15 secured to the mounting 7 which is thereby moved along guide 8. The finder is mounted between the walls a, b of a casing, and has an objective lens 4 and an eyepiece 3 between which lens 6 moves, preferably within a tube, to vary the field visible through the finder. A control knob journalled in wall 1 of the casing drives drum 10 by direct connection, or through a gear train. A cable 15 passes round pulleys 12 mounted with their axes in a plane parallel to the optical axis c of the finder, and has its ends connected to drum 10, one end directly and the other end through a spring 14. The cable is connected to the mount 7 at e. In modifications, one end of the cable may be connected to drum 10, and the other end to a second spring- - loaded drum, the cable may be endless and pass round drum 10, or a cable passing round drum 10 may have its ends connected to mount 7. The cable ends may be connected to their points of attachment by springs, and the finder and its control device may comprise a unit readily removable from and attachable to a camera.
Patent GB-924550-A (GB)
Title: Production of isotactic polystyrene
Inventor: POLSTER RUDOLF
IPC: C08F32/00
Filed: 1962-01-31
Abstract: Isotactic polystyrene is made by polymerizing styrene in the presence of a catalyst comprising an organometallic compound of the metals aluminium, zinc, or magnesium, and a transition metal compound, and in the presence of an aromatic diluent of boiling point between 80 DEG C. and 220 DEG C., which contains at least one liquid aliphatic and/or cycloaliphatic hydrocarbon and which is added during polymerization.  In the preferred embodiment, the styrene is first polymerized in the aromatic diluent, and when the reaction mixture has a viscosity of between 10 and 100 poises, the aliphatic and/or cycloaliphatic hydrocarbon is added.  Suitable catalysts are described in Specifications 810,023, and 810,024. Specified aromatic solvents are benzene, tetrahydronaphthalene, toluene, xylene, ethylbenzene, and chlorobenzene.  The added hydrocarbon may be hexane, cyclohexane, heptane, octane, or gasoline.
Patent GB-340433-A (GB)
Title: Improvements in methods of manufacturing electrical resistances
IPC: H01B1/24
Filed: 1930-02-03
Abstract: 340,433. Resistance coatings. GILL, H. A., 52, Chancery Lane, London.- (Steatit-Magnesia Akt.-Ges.; 18, Breite Strasse, Pankow, Berlin.) Feb. 3, 1930, No. 3655. [Class 37.] High ohmic resistances, suitable for wireless purposes and the like, are made by applying to a rod &c. of ceramic material a solution of a non-volatile organic compound such as sugar, starch, or dextrine and carbonizing it in vacuo or in a neutral atmosphere. Finely divided carbon may be added to the solution. Specification 22233/02, [Class 64, Heating], is referred to.
Patent GB-179595-A (GB)
Title: Improvements in and relating to electric furnace regulators
IPC: H05B3/00
Filed: 1921-01-31
Abstract: 179,595. British Thomson-Houston Co., Ltd., (General Electric Co.). Jan. 31, 1921 Furnace details. - In a regulating system for an arc furnace 1 with co-operating electrodes 2, 3, wherein separate switching devices 38, 27 are provided for rendering means operative to feed and retract respectively at least one of the electrodes, the device 38 for causing the feeding is rendered inoperative when the voltage between the electrodes falls below a predetermined value, the device 27 being unaffected. The switches 38, 27 are controlled by electromagnets 36, 26 and supply current in opposite directions to the armature of a reversible motor 9 having a constant field 42 and geared to operate the electrode 2. When the arc between the electrodes is too short or when the transformer 7 is first energized to start the furnace, the magnet 13 which is controlled by the current in the lead 4 moves the switch 14<1> on to contact 34 and closes the circuit through the electromagnet 26. When the arc reaches a predetermined length the switch 14<1> leaves the contact 34 and arrests the retraction of electrode 1. If the arc becomes too long the switch 14<1> engages the contact 35 and closes the circuit through the electromagnet 36, the switch 18 which is operated by a magnet 19 under the control of the voltage across the electrodes bridging the contacts all the time this voltage exceeds a predetermined value. The motor 9 is quickly brought to rest by dynamic braking, a resistance 44 being connected across the armature by a magnet 45 and the closure of the contact 46 being assisted by a spring 47. When the motor circuit is closed through the resistance 44, a mechanical interlock 48 prevents the closure of the magnets 36, 26. Specifications 108,902 and 129,039 are referred to.
Patent GB-412886-A (GB)
Title: Improvements in lubricating devices
IPC: F16N9/00
Filed: 1933-07-15
Abstract: 412,886. Force - feed lubricating. PRUVOT, H. E. N., 30, Rue des Epis, Sotteville-les-Rouen, Seine-Inferieure, France. July 15, 1933, No. 3756/34. Convention date, July 18, 1932. Divided on 412,421. [Class 12 (iii).] A moving part of a machine is lubricated by a lubricator 3 having an accumulator chamber 10 accommodating a spring-pressed piston 11. Oil under pressure is admitted to the cylinder 10 through a pipe 1 and non-return valve 7. The cylinder 10 has a hole 17 through which lubricant escapes when the cylinder is fully charged. A valve housing 19 having a delivery nozzle 27 is secured to the lubricator 3, the valve 21 being held on its seat by a spring 22. The part of the machine to be lubricated, e.g. the small end of a connecting-rod, carries a cup 35 having a cam member 38. When the cup 35, in its reciprocating movement, lies below the nozzle 27, the cam 38 engages a roller 33 on a bell-crank 31, and the valve 21 is opened so that a charge of lubricant passes from the lubricator to the cup 35. The lubricator 3 may have a test screw 5, which, when loosened, allows lubricant to flow through an orifice 6, and the nozzle 27 may have a spring-pressed valve 28. The means for operating the valve 21 may include movementreducing means, such as a pawl and ratchet mechanism, so that the valve 21 is opened once for a definite number of strokes of the cup 35.
Patent GB-350423-A (GB)
IPC: G07D9/06
Filed: 1930-02-05
Abstract: 350,423. Stacking coins &c. AUTOMATIC COINWRAPPING MACHINE CORPORATION, 78, Greenwich Street, New York, U.S.A.-(Assignees of Seemel, B. E. ; 623, Macon Street, Brooklyn, New York, U.S.A.) Feb. 5, 1930, No. 3871. Convention date, Feb. 6, 1929. [Class 94 (i).] A device for stacking coins &c., comprises feeding means and backing or holding mechanism consisting of a plurality of members, the first of which is withdrawn when the stack is partly completed and is replaced by a second member. Coins &c. are fed along a track, Fig. 1, and stacked on bars 3, 4, by reciprocating pins 5. The first few coins are supported by a backer 48, Fig. 2, which is provided with a pin 64 engaging a bell crank 63, and which is brought into position through links 61, 58, 59 when a cam 52 is rotated so that a pin 54 engages a recess 56, the lever 55 being thus freed to move under the action of a spring 57. At the same time a pin 18 is also rotated and a spring-pressed lever 38 withdraws a ratchet-toothed bar 32 from engagement with a spring-pressed pawl 33 hinged to a backer 30 carried on the bar 3. The member 30 is therefore freed to move under the action of a spring 31 towards the supplementary backer 48. As the rotation of the cam 52 continues the pin 54 is moved from the recess and the backer 48 is lowered ; while the pin 18 is rotated to bring the pawl 33 and ratchet 32 into engagement. Each unit of the bar 32 is equal in length to the thickness of a coin contains two or more teeth so that after the retreat of the bars 5 following the addition of a coin to the stack a slight pressure only is exerted on the stack. The bottom of the track 1 is formed by a sliding plate 14, depression of which to admit larger coins depresses a pin 21 which operates in oppositely inclined slots 22 in arms 16, 19 carrying the pins 3, 4 which are therefore both separated and depressed ; while the position of the ratchet bar 32 is controlled by a shoulder 40 on a sleeve 17 carried by the arm 16 which limits the movement of the lever 38.